{"id":92536,"date":"2026-01-05T20:00:12","date_gmt":"2026-01-05T19:00:12","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92536"},"modified":"2026-10-13T11:15:00","modified_gmt":"2026-10-13T09:15:00","slug":"omegon-pro-oiii-ccd-filter-1-25-inches","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-pro-oiii-ccd-filter-1-25-inch\/","title":{"rendered":"Omegon Pro OIII CCD Filter 1.25 inch"},"content":{"rendered":"

Omegon Pro OIII CCD Filter 1.25 inch: 12 nm bandpass for nebulae and supernova remnants<\/strong><\/h2>\n\n\n\n

The Omegon Pro OIII CCD filter is an interference filter with a bandpass of 12 nanometers, useful for both visual observation and astrophotography of planetary nebulae and supernova remnants.<\/p>\n\n\n\n

\"Omegon<\/figure>
\"Omegon<\/figure>
\"Omegon<\/figure><\/figure>\n\n\n\n

Directed oxygen permeability<\/h4>\n\n\n\n

The filter allows only the narrow band around the emission lines of doubly ionized oxygen to pass and blocks the rest. This significantly increases the contrast between the nebula and the sky background, even in light-polluted locations.<\/p>\n\n\n\n

Intended for larger openings<\/h4>\n\n\n\n

With a passband of 12 nanometers, relatively little light gets through. From an aperture of approximately 200 mm, the filter performs optimally. On smaller telescopes, it is usable at low magnification.<\/p>\n\n\n\n

Featured accessories<\/h3>\n\n\n\n

Threads onto any 1.25-inch eyepiece and fits into 1.25-inch filter wheels. For a narrower bandpass and astrophotography work, the Pro OIII 7nm is the next step.<\/p>\n\n\n\n

For whom yes and for whom no<\/h3>\n\n\n\n